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Supersonic Exhaust Testing at Glenn on a model called the Highly Variable Cycle Exhaust System.

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Supersonic Exhaust Testing at Glenn on a model called the Highly Variable Cycle Exhaust System.


Publication date 02/19/2010
New testing is underway in the Aero-Acoustic Propulsion Laboratory (AAPL) at NASA's Glenn Research Center. The research focuses on a model called the Highly Variable Cycle Exhaust System -- a 0.17 scale model of an exhaust system that will operate at subsonic, transonic and supersonic exhaust speeds in a future supersonic business jet. The model features ejector doors used at different angles. Researchers are investigating the impact of these ejectors on the resulting acoustic radiation. Here, Steven Sedensky, a mechanical engineer with Jacobs Sverdrup, takes measurements of the ejector door positions. Image Credit: NASA Bridget R. Caswell, (Wyle Information Systems LLC)

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